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Wednesday 9 August 2017

Assignment 17 for class 9th

Assignment 17 for class 9th
Q 1  Define and write   at  least  two  advantages of the following system of cropping:
(a) Mixed cropping
(b) Inter cropping
(c) crop rotation
Q2 Name some weeds and write methods of removal of weeds
Q3 Why do we need to protect our crops against pests? 
Q4 Name some common pests and  two plant diseases. .Explain the various methods of pest control in the fields.
 HOTS
Q1 suggest the best methods of pest control and give reason for the same
Q2 Why is it advised to clear the previous crop before sowing the next?
at

50 comments:

  1. Harshita9 August 2017 at 18:24

    Thankew mam for the assignment😊😊
    Harshita
    9E

    ReplyDelete
  2. Unknown9 August 2017 at 18:25

    thank you mam
    these are very helpful assignments
    Ria Goel
    9th D

    ReplyDelete
  3. Anshika9 August 2017 at 18:49

    Thankyou mam
    Anshika
    9e

    ReplyDelete
  4. Unknown9 August 2017 at 19:21

    Thank you mam
    Taneeshka chhabra
    9-D

    ReplyDelete
  5. Unknown9 August 2017 at 20:08

    Thank you so much mam.
    Prachi Mittal
    9-D

    ReplyDelete
  6. Unknown9 August 2017 at 21:22

    Thank you mam for such a helpful assingement
    Abhedika Singh
    9E

    ReplyDelete
  7. Unknown9 August 2017 at 22:18

    Thank you Ma'am
    Shreya
    9-E

    ReplyDelete
  8. Unknown9 August 2017 at 23:00

    Thank you

    ReplyDelete
  9. Unknown9 August 2017 at 23:22

    Done

    ReplyDelete
  10. Unknown9 August 2017 at 23:23

    Cant understand q3 and HOTS

    ReplyDelete
  11. Unknown9 August 2017 at 23:43

    Thanks mam for assignment
    Vaibhav garg
    9-E

    ReplyDelete
  12. Unknown10 August 2017 at 05:25

    Thank u mam for this assignment
    Pridhi
    9th e

    ReplyDelete
  13. Anandita Mohan10 August 2017 at 14:52

    Thank you Mam
    Ayush Mohan
    IX-E

    ReplyDelete
  14. Unknown10 August 2017 at 18:36

    Mam what is the answer of this question
    Q- why is advised to clear the previous
    Crop before sowing the next? Hots Q2
    Harsh jain
    9-f

    ReplyDelete
    Replies
    1. Bharti Pant15 August 2017 at 11:42

      To avoid any weed or pest to be transmitted to the next crop

      Delete
  15. Unknown10 August 2017 at 18:38

    thank you mam i have done the assignment
    prateek
    9f

    ReplyDelete
  16. Unknown10 August 2017 at 18:53

    Please mam

    ReplyDelete
  17. lavish khanna10 August 2017 at 19:39

    thank you mam for the assignment

    ReplyDelete
  18. Himanshu kapoor10 August 2017 at 20:25

    Thnx for the assignment mam
    I knew all the answers

    ReplyDelete
  19. Unknown10 August 2017 at 20:31

    mam I am not getting answer of last question hots please give hint

    ReplyDelete
    Replies
    1. Bharti Pant15 August 2017 at 11:47

      for the best method of pest control ---- the biological methods like crop rotation .intercropping , mixed cropping or growing disease resistant varieties. also one can try natural predators to kill the pests like australian lady bird eats scale insect which distroys crops
      these methos are ecofriendly ,without pollution and does not affect the crop either

      Delete
  20. Akshit bansal10 August 2017 at 20:37

    Thank you man i have done this assignment
    Akshit
    9f

    ReplyDelete
  21. RAJEEV KUMAR JOSHI10 August 2017 at 20:40

    This comment has been removed by the author.

    ReplyDelete
  22. Shagun Gupta10 August 2017 at 20:44

    thank you mam
    i have done it!
    Shagun
    ix-d

    ReplyDelete
  23. Unknown10 August 2017 at 20:52

    Thanku Mam
    Mihika
    IX-E

    ReplyDelete
  24. Shubhi Garg10 August 2017 at 21:01

    Thank you so much mam ...I've completed it ...
    Shubhi garg
    IX-D

    ReplyDelete
  25. Unknown10 August 2017 at 21:38

    Thank you mam
    Fahad Rehman
    IX-D

    ReplyDelete
  26. Unknown10 August 2017 at 21:51

    Maam Pls tell the answer of last ques of Hots...
    I have done the rest
    Devanshi Gupta
    9C

    ReplyDelete
  27. Unknown10 August 2017 at 22:04

    Mam I have done this assignment.
    9th F
    Sarthak

    ReplyDelete
  28. Unknown10 August 2017 at 23:01

    Ma'am I have done this assessment

    ReplyDelete
  29. ASHOK HELPFUL11 August 2017 at 10:51

    Ma'am I have done this assessment

    ReplyDelete
  30. Unknown11 August 2017 at 15:56

    I have completed the assignment
    JUHI NAGPAL
    IX-C

    ReplyDelete
  31. Unknown11 August 2017 at 15:57

    Ma'am I have read a very good article on crop protection
    JUHI NAGPAL
    IX-C

    ReplyDelete
  32. Unknown11 August 2017 at 16:27

    THANK YOU MA'AM,
    I HAVE DONE THIS ASSIGNMENT.
    YASH AGGARWAL
    IX-C

    ReplyDelete
  33. Unknown11 August 2017 at 19:09

    Thank u mam
    Kinjal 9th E

    ReplyDelete
  34. Unknown11 August 2017 at 20:10

    Thanks mam
    Anshika jain
    IX. C

    ReplyDelete
  35. Om Raghuvanshi12 August 2017 at 12:04

    Thank you mam
    Om Raghuvanshi
    9-C

    ReplyDelete
  36. Om Raghuvanshi12 August 2017 at 12:04

    Thank you mam
    Om Raghuvanshi
    9-C

    ReplyDelete
  37. Nitti13 August 2017 at 09:22

    Thank you mam

    ReplyDelete
  38. Unknown15 August 2017 at 13:28

    Thank you mam

    ReplyDelete
  39. Unknown15 August 2017 at 20:07

    Thank you mam for the assignment.
    Dhwani Singh
    9 - c

    ReplyDelete
  40. Unknown16 August 2017 at 16:33

    Thanks mam for ur support and guadence
    Vardaan 9c

    ReplyDelete
  41. Unknown16 August 2017 at 16:34

    Guidance""

    ReplyDelete
  42. Unknown16 August 2017 at 21:48

    thank you mam
    vrinda
    9-f

    ReplyDelete
  43. Unknown16 August 2017 at 21:48

    thank you mam
    vrinda
    9-f

    ReplyDelete
  44. Bhavya bansal17 August 2017 at 20:48

    thank you mam for the assignments...these assignments are very helpful
    Himanshu Bansal
    IX-D

    ReplyDelete
  45. Palak Sharma17 August 2017 at 21:02

    Thanks Mam
    PALAK SHARMA
    IX-E

    ReplyDelete
  46. Unknown18 August 2017 at 20:39

    THANK YOU MAM I HAVE DONE THIS ASSIGNMENT
    TANEESHKA CHHABRA
    9-D

    ReplyDelete
  47. Yash Bhambri18 August 2017 at 22:32

    Thanks mam.
    I have done all the questions
    Yash Bhambri
    IX-D

    ReplyDelete
  48. Yash Bhambri18 August 2017 at 22:32

    Thanks mam.
    I have done all the questions
    Yash Bhambri
    IX-D

    ReplyDelete

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